In Pandemic: On The Brink there are several new event cards. We are curious as to whether the "New Assignment" card lets you choose, or whether you pick one at random (as at the start of the game).
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During the setup the players are required to draw 9 cards to infect the starting cities before the game starts. What if for example no red disease card is drawn? Is the red disease already eradicated ...

I've had Pandemic and On The Brink for a while, recently we tried giving the Bio-Terrorist challenge a go. We weren't sure how many epidemic cards to use.
For the standard game (no purple cubes but ...

In Pandemic On the brink we ran into a situation where both the black strain and bioterrorist purple strain were cured. At one point one of the players moved into a territory that had multiple black ...

Having read this
Do I need On The Brink to play In The Lab?
I have no interest in buying On the Brink, however if I were to buy the On the Brink replacement cards can I use the events cards from OtB ...